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Finding the Fourth Proportional to 586,386.30, 879,663.30 and 187,031.61

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Solution

The fourth proportional to 586,386.30, 879,663.30 and 187,031.61 is: 280,574.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,386.30 : 879,663.30 = 187,031.61 : x
  2. Step 2: Convert to fraction form
    586,386.30/879,663.30 = 187,031.61/x
  3. Step 3: Cross multiply
    586,386.30x = 879,663.30 × 187,031.61
  4. Step 4: Simplify right side
    586,386.30x = 164,524,843,256.91
  5. Step 5: Solve for x
    x = 164,524,843,256.91/586,386.30
  6. Step 6: Final answer
    x = 280,574.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.